• Journal of The Korean Society of Integrative Medicine
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• v.8 no.3
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• pp.121-131
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• 2020

Purpose : This study was conducted to confirm the correlation between team sharing spirit, team effectiveness, team cohesion, team reliability, and turnover intention of hospital nurses and to identify the influence factors affecting the turnover intention of hospital nurses. Methods : The sample for this study consisted of 200 nurses from four general hospitals of less than 500 beds located in J city. Data were analyzed using frequency, percentage, mean, standard deviation, t-test, ANOVA, Scheffe' test, Pearson Correlation and Hierarchical Multiple Regression. Results : Factors influencing nurse turnover intentions included satisfaction with nursing position (β=.274), team reliability (β=-.250), satisfaction with department (β=-.178), and career (β=.149) in order, and these influence factors accounted for 32.1 % of nurses' turnover intentions. Conclusion : Based on the results of the study, it is necessary to consider ways to reduce the turnover intention of nurses by devising strategies to increase the factors of satisfaction with nursing positions, team reliability, and satisfaction with department by making good use of the resources of the medical institution. It is suggested to conduct repeated studies of nurses working in various clinical sites and further studies applying various outcome variables in the future.

• Proceedings of the Korean Nuclear Society Conference
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• 2005.10a
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• pp.1057-1058
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• 2005

• Proceedings of the Korean Reliability Society Conference
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• 2005.06a
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• pp.19-40
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• 2005

• Atmosphere
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• v.30 no.2
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• pp.141-154
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• 2020

Seasonal forecast is growing in demand, as it provides valuable information for decision making and potential to reduce impact on weather events. This study examines how operational climate prediction systems can be reliable, producing the probability forecast in seasonal scale. A reliability diagram was used, which is a tool for the reliability by comparing probabilities with the corresponding observed frequency. It is proposed for a method grading scales of 1-5 based on the reliability diagram to quantify the reliability. Probabilities are derived from ensemble members using hindcast data. The analysis is focused on skill for 2 m temperature and precipitation from climate prediction systems in KMA, UKMO, and ECMWF, NCEP and JMA. Five categorizations are found depending on variables, seasons and regions. The probability forecast for 2 m temperature can be relied on while that for precipitation is reliable only in few regions. The probabilistic skill in KMA and UKMO is comparable with ECMWF, and the reliabilities tend to increase as the ensemble size and hindcast period increasing.

• Journal of Applied Reliability
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• v.9 no.1
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• pp.29-35
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• 2009

Due to the excellent durability of Timing Chain, it has been widely used for vehicle engine system. Unlike the timing belt, since the timing chain is operated with the metallic sprocket, the lubrication system is absolutely needed to get this system start. As frequently met at the field, the lubricant has a strong tendency to leak out from the engine due to its severe operating environment. In this paper, results of investigation for thermal movement of aluminum chain cover were described to maximize the sealing ability which is desperately needed at the development stage of engine. Based on these results, some ideas for reproducing the leakage phenomenon and solving methods were proposed.

• Journal of Korean Society for Quality Management
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• v.34 no.4
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• pp.13-21
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• 2006

This paper includes an example of applying Six Sigma to Non-function test process to improve the efficiency and reliability of the Ammunition Stockpile Reliability Program (ASRP). By applying the DMAIC which is one of the Six sigma methods. we found out the vital few and as an improved version : effective redesign of check-sheets, pre-examination of technology, on-the-scene support system. As a result, we could enhance the reliability and reduce manpower and additional expenses.

• Proceedings of the KIEE Conference
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• 2003.07d
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• pp.2028-2030
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• 2003

This paper describes the results of reliability prediction analysis of control rod control system, which is being developed as part of KNICS project. The results of reliability prediction indicate MTBF(Mean Time Between Failure) of cards for control rod control system. A purpose of reliability prediction is to evaluate MTBF of cards, identify the design drawbacks of cards, and propose design improvement to a designer to help design the more reliable control rod control system. This reliability prediction analysis used the the part count and part stress method in the basis of MIL-HDBK-217F.

• Journal of Engineering Education Research
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• v.27 no.1
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• pp.63-70
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• 2024

The capstone design classes in the College of Engineering are often team project-oriented, and teamwork skills are reported to positively impact problem-solving abilities. While team project courses have various advantages, they also come with challenges such as social loafing and issues related to free riders, which consistently hinder the positive effects of team project courses. To prevent these issues, there is a need to provide a clear evaluation-reward system for team members' contributions. In this study, we examined the reliability of peer evaluation scores for team members' contributions and reviewed methods to incorporate them into team project grades. The review results indicated that peer evaluation scores are deemed to have considerable reliability from a qualitative perspective. However, due to the relatively small team size in team project courses (3 to 6 members per team), using the arithmetic mean of peer evaluation scores is statistically challenging. As a complementary approach, this study proposes limiting the reflection ratio of peer evaluation scores and applying a more macroscopic processing method, not the arithmetic mean, to incorporate peer evaluation scores for team contributions into grades.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2006.10a
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• pp.637-638
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• 2006

• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 2007.11a
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• pp.265-268
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• 2007